From Residential to Ag to Property Development
Our test site wells yield from 5 to 5,000 gallons per minute!

Call us at 1-800-980-7429 or 559-298-2409 or click below.

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New well clients

The recent rains have given a lot of our new clients the idea that it will be a good time to drill for water. This may be a good time to let National Groundwater Survey test you property as the moist ground helps with the data collection. We are booking jobs now that will be Read More…

400 gallons per minute!

When you start looking for groundwater a question come to mind. How much water do you need. NGS has found as little as 1gpm to as much as 5,000gpm. If you are a home owner and your well has gone dry and have drilled two or three dry holes, then 1gpm may be a lot Read More…

New client referral from neighbor

NGS did work in Castro Valley for a client back in May 2018. He drilled a well on a recommended tests site and the yield was 12gpm. This client told his neighbor how he found us and that he was very happy with the results of the NGS testing. The neighbor hired NGS yo do Read More…

Going High Tech to Find Ranchos Water


Off in the distance all you hear is seemingly muffled shotgun blasts. You’re tempted to check the date to see if dove season has opened and you somehow missed it, but what you’re really hearing is water being discovered. The water witchers have gone high tech.

From single family home sites to large agricultural wells, call National Groundwater Surveyor at 800-980-7429.

We also provide Groundwater Surveys in Nevada and Oregon!

Finding Water is what we do WELL!

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